| 杨树速生丰产林材积生长量的预测 |
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| 引用本文： | 邹桂霞 刘建民. 杨树速生丰产林材积生长量的预测[J]. 吉林林学院学报, 1997, 13(3): 147-150 |
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| 作者姓名： | 邹桂霞 刘建民 |
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| 作者单位： | [1]辽宁省水土保持研究所 [2]辽宁省朝阳市林业局 |
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| 摘 要： | 应用灰色系统理论，以辽宁省喀左县五大河流两岸营造的赤峰－３６杨材积每化顷定期平均生长量为基础应用Ｖｅｒｈｕｌｓｔ非线性微分的动态模型进行预测，建立了材积每化顷定期平均生长量预测模型。预测了９－１５ａ赤峰－３６杨每化顷定期平均生长量，从数量成熟及经济效果两方面确定最佳轮伐期为１３ａ，这对提高经营水平，土地利用率经济效益十分有益。
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| 关 键 词： | 赤－36杨 材积生长量 灰色预测模型 杨树 |
The Volume Forecast of the Speed up and High Yield Forest for Poplar |
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| Zou Guixia Li Xiaohua Gao Peng Li Tiejun. The Volume Forecast of the Speed up and High Yield Forest for Poplar[J]. , 1997, 13(3): 147-150 |
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| Authors: | Zou Guixia Li Xiaohua Gao Peng Li Tiejun |
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| Affiliation: | Zou Guixia Li Xiaohua Gao Peng Li Tiejun (Institute of Soil and Water Conservation of Liaoning Province) Liu Jianmin Li Jin (Forest Bureau of Chaoyang City) |
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| Abstract: | With grey system theory,on the basis of Chifeng 36 poplar volume of periodic annual increment per hectare on the both banks of five rivers of Kazuo country in Liaoning Province,the forecast model was found by using verhulst non linear dynamic model. Periodic annual increment of Chifeng 36 poplar have been calculated from 9th year to 15th year with the model. The optimum rotation is 13a at technology and economic angles. It is useful to improve the level of management,land utilization ratio and the economic benefit. |
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| Keywords: | Chifeng 36 poplar Grey system forecast model Volume increment |
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